CVE-2024-9340: Zenml Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-6gmf-2369-c76c
Share
CVSS 7.5
CWE-400 CWE-835
Published
Advisory Summary

CVE-2024-9340 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Zenml libraries in the PyPI ecosystem. The issue involves zenml unauthenticated dos via multipart boundry. Remediation is available by upgrading affected packages to version 0.68.0.

CVE-2024-9340 at a Glance

CVE Identifier CVE-2024-9340
GHSA Identifier GHSA-6gmf-2369-c76c
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Zenml
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2024-9340

To remediate this vulnerability, upgrade all affected Zenml dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

zenml fixed: 0.68.0 
pip install zenml>=0.68.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show zenml

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-9340, inspect your installed packages using pip:

pip show zenml

Analyze the terminal output to locate any version of Zenml in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.68.0), your application is affected.

Note: The pip show zenml command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Zenml, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A Denial of Service (DoS) vulnerability in zenml-io/zenml version 0.66.0 allows unauthenticated attackers to cause excessive resource consumption by sending malformed multipart requests with arbitrary characters appended to the end of multipart boundaries. This flaw in the multipart request boundary processing mechanism leads to an infinite loop, resulting in a complete denial of service for all users. Affected endpoints include `/api/v1/login` and `/api/v1/device_authorization`.

CVE-2024-9340 Affected Zenml Versions

1 component(s)
Fixed Versions:
0.68.0
Product / Package Ecosystem Affected Versions Fixed Version
zenml
pypi/zenml
PyPI
< 0.68.0
0.68.0

References

NVD — CVE-2024-9340 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-9340
Security Fix Commit FIX COMMIT
https://github.com/zenml-io/zenml/commit/cba152eb9ca3071c8372b0b91c02d9d3351de48d
Zenml Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/zenml/PYSEC-2025-57.yaml
Zenml Source Repository REPOSITORY
https://github.com/zenml-io/zenml
huntr.com/bounties/c9200654-7... WEB
https://huntr.com/bounties/c9200654-7dc0-4c1d-8573-ab79a87fb4f6

Frequently Asked Questions

What is CVE-2024-9340?
CVE-2024-9340 is a security vulnerability in Zenml involving ZenML unauthenticated DoS via Multipart Boundry under CWE-400: Uncontrolled Resource Consumption.
Which Zenml versions are affected?
Affected versions include releases prior to 0.68.0 across affected packages: zenml.
What version fixes CVE-2024-9340?
Upgrading to 0.68.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is zenml affected?
Yes, zenml is affected in releases prior to 0.68.0. Upgrade your dependency to 0.68.0 or later.
What is the CVSS score of CVE-2024-9340?
CVE-2024-9340 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2024-9340?
CVE-2024-9340 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check PyPI dependencies for CVE-2024-9340?
Run the dependency tree command: 'pip show zenml'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6gmf-2369-c76c",
  "modified" : "2025-06-30T12:51:38Z",
  "published" : "2025-03-20T12:32:51Z",
  "aliases" : [ "CVE-2024-9340" ],
  "summary" : "ZenML unauthenticated DoS via Multipart Boundry",
  "details" : "A Denial of Service (DoS) vulnerability in zenml-io/zenml version 0.66.0 allows unauthenticated attackers to cause excessive resource consumption by sending malformed multipart requests with arbitrary characters appended to the end of multipart boundaries. This flaw in the multipart request boundary processing mechanism leads to an infinite loop, resulting in a complete denial of service for all users. Affected endpoints include `/api/v1/login` and `/api/v1/device_authorization`.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "zenml"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.68.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-9340"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zenml-io/zenml/commit/cba152eb9ca3071c8372b0b91c02d9d3351de48d"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/zenml/PYSEC-2025-57.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/zenml-io/zenml"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.com/bounties/c9200654-7dc0-4c1d-8573-ab79a87fb4f6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-835" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-03-21T03:38:21Z",
    "nvd_published_at" : "2025-03-20T10:15:48Z"
  }
}